rebase: fix rebase with no common ancestors (issue4446) The new rebase revset didn't check for the case when there are no common ancestors. Now it does. The new behavior should be the same as the pre-3.2 behavior. Added a test.

     1

  $ echo "[extensions]" >> $HGRCPATH

     2

  $ echo "mq=" >> $HGRCPATH

     3

     4

  $ hg init

     5

     6

  $ echo 'base' > base

     7

  $ hg ci -Ambase

     8

  adding base

     9

    10

  $ hg qnew -mmqbase mqbase

    11

    12

  $ hg qsave

    13

  $ hg qrestore 2

    14

  restoring status: hg patches saved state

    15